Final answer:
OVI convictions carry harsher penalties at a BAC of 0.08% or higher, the legal limit for being considered dr-unk in most US states. The Breathalyzer measures BAC through breath analysis.
Step-by-step explanation:
OVI convictions, or Operating a Vehicle under the Influence, are subject to harsher penalties when the driver's blood alcohol concentration (BAC) is 0.08% or higher. Since alcohol consumption impairs tasks requiring skill and judgment, especially driving, most US states have established this BAC threshold as the legal limit for being considered legally dr-unk. The Breathalyzer is a commonly used device for measuring BAC, and it operates by analyzing the ethanol concentration in the breath, which correlates to the blood alcohol level. Individuals with BAC levels of 0.08% or above could face serious legal consequences including fines, license suspension, and even imprisonment.